I would think what APLX or Dialog do is somewhat irrelevant. I believe GNU APL is treating IBM APL 2 as the standard to be matched.
Blake On Thu, Aug 26, 2021 at 12:21 PM Louis Chretien via Bugs and suggestions for GNU APL <bug-apl@gnu.org> wrote: > I tried the same examples in APL/X and Dyalog APL. > > APL/X seems to give the same results as GNU APL: but both enclose are > indented right by one column > > > > But Dyalog APL has quite a different result: no blank lines between rows. > > > On Aug 26, 2021, at 12:44, Dr. Jürgen Sauermann < > m...@xn--jrgen-sauermann-zvb.de> wrote: > > Hi again, > > checking the same in IBM APL2, the behaviour of GNU APL seems correct. > (see attached Screenshot). > > Best Regards, > Jürgen > > > > > On 8/26/21 5:58 PM, Dr. Jürgen Sauermann wrote: > > Hi Hans-Peter, > > thanks, I will look into this. > > The general problem is that the rules how nested values with rank ≥ 2 > should > be displayed are, at least as far as I know, nowhere specified in a formal > fashion. > From old APL 1 we know that the higher dimensions (> 2) of a not-nested > value > shall be separated by a number of empty lines, but we don't really know, > for example, > how these separator lines should be handled when the value is being > enclosed. > > To me it is not clear if there is a line missing in *⊂¨2 2 ⍴ e* or if > there maybe is a line > too much in *⊂2 2 ⍴ e* (even though that way it looks a little nicer). > > Best Regards, > Jürgen > > > > On 8/26/21 11:29 AM, Hans-Peter Sorge wrote: > > Hi, > > > ⍝ just a simple matrix > > i∘.+i←¯1+⍳2 > 0 1 > 1 2 > > ⍝ make it an element > ⎕ ← e ← ⊂i∘.+i←¯1+⍳2 > 0 1 > 1 2 > > > ⍝ matrix of matrixes.... > 2 2 ⍴ e > 0 1 0 1 > 1 2 1 2 > > 0 1 0 1 > 1 2 1 2 > > > ⍝ enclose the matrix of matrixes indents nicely ... > ⊂ 2 2 ⍴ e > 0 1 0 1 > 1 2 1 2 > > 0 1 0 1 > 1 2 1 2 > > > ⍝ display of enclose each 'sub'-matrix misses space line > ⊂¨2 2 ⍴ e > 0 1 0 1 > 1 2 1 2 > 0 1 0 1 > 1 2 1 2 > > Best Regards > Hans-Peter > > > > <APL2.png> > > > > --- > Louis Chrétien > lchret...@mac.com > > > > >
